linux/crypto/xor.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * xor.c : Multiple Devices driver for Linux
 *
 * Copyright (C) 1996, 1997, 1998, 1999, 2000,
 * Ingo Molnar, Matti Aarnio, Jakub Jelinek, Richard Henderson.
 *
 * Dispatch optimized RAID-5 checksumming functions.
 */

#define BH_TRACE …
#include <linux/module.h>
#include <linux/gfp.h>
#include <linux/raid/xor.h>
#include <linux/jiffies.h>
#include <linux/preempt.h>
#include <asm/xor.h>

#ifndef XOR_SELECT_TEMPLATE
#define XOR_SELECT_TEMPLATE …
#endif

/* The xor routines to use.  */
static struct xor_block_template *active_template;

void
xor_blocks(unsigned int src_count, unsigned int bytes, void *dest, void **srcs)
{ … }
EXPORT_SYMBOL(…);

/* Set of all registered templates.  */
static struct xor_block_template *__initdata template_list;

#ifndef MODULE
static void __init do_xor_register(struct xor_block_template *tmpl)
{ … }

static int __init register_xor_blocks(void)
{ … }
#endif

#define BENCH_SIZE …
#define REPS …

static void __init
do_xor_speed(struct xor_block_template *tmpl, void *b1, void *b2)
{ … }

static int __init
calibrate_xor_blocks(void)
{ … }

static __exit void xor_exit(void) { … }

MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;

#ifndef MODULE
/* when built-in xor.o must initialize before drivers/md/md.o */
core_initcall(register_xor_blocks);
#endif

module_init(…) …;
module_exit(xor_exit);